Final Report of BeJamDetect Project

5.4. Results of RFI detection and characterisation
Demonstrator 3 was installed on board of the BSH DENEB ship, as was Demonstrator 1 in the first
measurement campaign of the BeJamDetect project. The campaign started on July 24, 2023 and
went until November 24, 2023. During this period, the DENEB ship conducted its normal activities
in the Baltic Sea.

The overview of the measurement campaign can be assessed through the plots of the input power
of the signals on the top antenna element during the whole period. On Figure 5-7 and Figure 5-8
the respective plots of the input power in L1 and L5 bands are reproduced.

.1 band, Input power at central array element

=—— APin at Ant#7 (dB)
—-=—=-:1dB weak RFI threshold
= — '3dB medium RFI thrashold
= —5dB strong RFI threshokd |

SA

zn
D1-Sen

O1-Oct
UTC time, t0 = 24-Jul-2023, 00:00:00

2023

-igure 5-7 - Instant power in L1 band of Demonstrator 3

L5 band, input power at central array element

—— APin at Ant#7 (dB)
===: 1dE weak RFI threshold
= = «3dB medium RFI threshokd
—m— BB strang RFI threshald

a

bg Ks

AT

A
UTC time, t0 = 24-Jul-2023, 00:00:00

a

2023

-igure 5-8 - Instant power in L5 band of Demonstrator 3

Title: Final Report
Version: 1.0

age: 80